usb 7-1: USB disconnect, device number 2 em28xx 7-1:0.0: Disconnecting em28xx #6 em28xx 7-1:0.0: Disconnecting em28xx list_del corruption. prev->next should be ffff88815e310250, but was ffffffff841d97ea. (prev=ffff88815e2ac250) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:64! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 3443 Comm: kworker/1:3 Not tainted 6.10.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:__list_del_entry_valid_or_report+0x124/0x140 lib/list_debug.c:62 Code: 90 03 90 0f 0b 48 c7 c7 60 13 ab 86 48 89 de e8 32 70 90 03 90 0f 0b 48 c7 c7 c0 13 ab 86 48 89 de 4c 89 f9 e8 1d 70 90 03 90 <0f> 0b 48 c7 c7 40 14 ab 86 48 89 de 4c 89 f1 e8 08 70 90 03 90 0f RSP: 0018:ffffc90001137510 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff88815e310250 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff0ff3778 R12: dffffc0000000000 R13: ffffffff84d7d3e0 R14: ffff88815e264250 R15: ffff88815e2ac250 FS: 0000000000000000(0000) GS:ffff8881f6300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6f9f371da0 CR3: 0000000007f1a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del include/linux/list.h:229 [inline] em28xx_close_extension+0xf6/0x1d0 drivers/media/usb/em28xx/em28xx-core.c:1136 em28xx_usb_disconnect+0x153/0x260 drivers/media/usb/em28xx/em28xx-cards.c:4145 usb_unbind_interface+0x1c7/0x7f0 drivers/usb/core/driver.c:461 device_remove drivers/base/dd.c:568 [inline] __device_release_driver drivers/base/dd.c:1270 [inline] device_release_driver_internal+0x457/0x710 drivers/base/dd.c:1293 bus_remove_device+0x2d0/0x380 drivers/base/bus.c:574 device_del+0x432/0x760 drivers/base/core.c:3868 usb_disable_device+0x2da/0x630 drivers/usb/core/message.c:1418 usb_disconnect+0x2c2/0x820 drivers/usb/core/hub.c:2304 hub_port_connect drivers/usb/core/hub.c:5361 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x15f1/0x3a30 drivers/usb/core/hub.c:5903 process_one_work kernel/workqueue.c:3248 [inline] process_scheduled_works+0x9b6/0x1380 kernel/workqueue.c:3329 worker_thread+0x750/0xb20 kernel/workqueue.c:3409 kthread+0x256/0x2e0 kernel/kthread.c:389 ret_from_fork+0x32/0x70 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x124/0x140 lib/list_debug.c:62 Code: 90 03 90 0f 0b 48 c7 c7 60 13 ab 86 48 89 de e8 32 70 90 03 90 0f 0b 48 c7 c7 c0 13 ab 86 48 89 de 4c 89 f9 e8 1d 70 90 03 90 <0f> 0b 48 c7 c7 40 14 ab 86 48 89 de 4c 89 f1 e8 08 70 90 03 90 0f RSP: 0018:ffffc90001137510 EFLAGS: 00010246 RAX: 000000000000006d RBX: ffff88815e310250 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff0ff3778 R12: dffffc0000000000 R13: ffffffff84d7d3e0 R14: ffff88815e264250 R15: ffff88815e2ac250 FS: 0000000000000000(0000) GS:ffff8881f6300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6f9f371da0 CR3: 0000000007f1a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400